Grain-weigher



C. M. LEFLEH.

GRAIN WEIGHER.

vAPPLICATION FILED Ana 2o, 1.919.

EEST-.IEE M. L .EFl E. @@Ogq wor/nua@ C. M. LEFLER.

GRAIN WEIGHER.

APPLICATloN FILED M1610, 1919.

EHTQEEMQL? 1.214

CHARLES M. LEFLER, 0F WINSTON, MONTANA.

GRAIN-WEIGHEB.

Application led August 20, 1919.

To all whom t may concern Be it known that I, CHARLES M. LEFLER,

a citizen of the UnitedStates, residing at.

Winston, in the county of Broadwater and State of Montana, have inventedcertain new and useful Improvements in Grain- Weighers, of which thefollowing is a specification.

This invention relates to a grain weighing device, and an object of theinvention is to provide a grain weighing device which is self contained,requiring no power for the operation thereof, and one which is simpleinconstruction, and may be manufactured at a relatively low cost.

More specically, the invention comprehends the provision of a grainweigher comprising a body or grain receiving housing divided into a pairof compartments, and having a pair of rockable valve members carriedthereby one of'which controls the inlet of grain into the compartmentwhile the other controls the outlet of grain from the compartments,which valve members are connected for synchronous movement, whereby whenone of the valve members opens to allow the grain to pass out of thecompartment the other will move into a closing position to prevent theentrance of rain thereinto, and to associate with said valve a spring,of the contractile spiral type, the

Ytension of which regulates the quantity of grainmeasured upon eachoperation of the weigher and which will, when the closing valve reachesits dead center swing the clos ing valve into a closing position withrespect to the compartment 'which is at such time receiving the' grain.

A further object of the invention is to provide an attachment for grainweighers, including a spring controlled striking lug carried by a diskwhich is connected to the valve and controls Ythe inlet of 'grain intothe compartment, the said pin being adapted for striking engagement witha counter of any approved type to register each predetermined quantityof grain measured by the ap aratus.

ther obj ects of the invention will appear Specification of LettersPatent.

A weigher taken on the line Patented Nov. 9, 1920, serial No. 318,810.

Fig. 2 is a vertical section of the grain 2 2 of Fig. 1. F 1g. 3 1s avertical section through theV y grain weigher taken transversely to thesection illustrated in Fig. 2.

Fig. 4 is a horizontal cross section taken on the line 4 4 of Fig. 3. f

Fig. 5 is a detail enlarged side elevation of the tensioning means forthe spring.

Fig. 6 is a detail section taken on the line 6-6 of Fig. 5.

Fig. 7 is a detail section taken on the line 7 7 of Fig. l andillustrating the counter operating pin, and

Fig. 8 is a detail perspective of the inlet controlling valve.

Referring more particularly to the drawings, wherein like charactersindicate like and corresponding parts throughout the sev- `veral views,the main body or housing of in the following detailed description takent cation,

the weighing attachment formed of sheet metal, and shape;

10 is preferably in a rectangular However it is to be understood thatany ractical shape may be employed, for the ody 10 without departingfrom the spirit of this invention. `A vertically eX- tending partition1l is placed within the body 10 and divides the same into compartments12 and 13 each of which open out at the upper and lower ends of thebody. The receiving member y14 is attached to or formed ,uponthe upperend of the housing or body 10. and it is provided withy a constrictedgrain receiving mouth 15 while a similar delivery member 16 is attachedto or formed upon the lowerend of the body 10 and it also has aconstricted outlet 17, as clearly...`

shown in Figs. 1 and 3 of the drawings.

Positioned at the upper end of the body l0 equidistant of its edges, isa rockable shaft 18, which has a disk 19 mounted thereon exteriorly ofthe housing, and a valve member 20 keyedi thereon interiorly of thehousing and riding in the inlet or receiver 14 of the weighingattachment., This valve 20 is substantially pyramidal in shape, havingAthe opening 21 at its apex which receives the shaft 18 therethrough, andits outer end or base 22 is arcuated, as clearly shown in the drawings,to form a snug fit between the arcuate portions of the Walls of thereceiver 14 to prevent the passage of grain therebetween. Stops 23 and24 are carried by the arcuate 14,' and portions of the walls-of thereceiver lmit the movement of the valve 20.

' trol valve 26 mounted A second shaft 25 is supported by the body 10 atits lower end, and it has an outlet conthereon. rlhe valve 26 is similarin shape to the valve 20, however, it is larger in lsize andconsequently much greater in width. cumference of the base portion ofthe valve 26 is substantially equal to the width of the throat 17, sothat when the valve 26 is in a vertical position upon its dead center,it will practically close the outlet or throat 17 and prevent thepassage of grain thereinto, as will be' hereinafter more fullydescribed. Stops 27 and 28 are provided within the body 10 to limit themovement of the valve 26. A disk 29 is mounted.k upon Athey outer end ofthe shaft 25. rThe rod 30 eccentrically connects the disks 19 and 29,and subsequently the shafts 13 and 25 for synchronous movement. A boltor lug 31 is carried by the disk 29 and extends through a block 32,slidably carried by a frame 33. An adjusting bolt 33 is connected to theblock 32, for adjusting its position with respect to the frame 33 andthis block 32 is provided with l an aperture 34 which lis mounted overthe pin or lug 31 for connecting the block to the disk 29. The frame 33has a spiral spring 35 of the contracting type connected thereto, whichspring is also carried by the disk 19. 'This spring is connected to eachof the disks, Vat slightly odset points to their axis, so that thecontracting action of the sprin s will rock the valve and shafts 18 and25 when the valves 2O and 26 are upon dead' center, thus positivelyinsuring the operation of the weighing attachment.

lin use, the-,valve 20 forms a closure for one of the compartments asshown in Fig. 3, forming a closure for the complartment 13 to preventgrain from entering t e said compartment at which time the valve 26forms a closure for the lower end of the compartment 12 to prevent grainfrom passing out of this compartment. When the valve is so placed, the.grain passing through the receiver lll will be guided into thecompart-` ment 12.` As the quantity of grain within the compartment 12increases, it will gradually force the valve 26 downwardly at the sametime tensioning the spring 35`and this may pass radual downward forcingof the valve 26 will gradually move the valve 20 over toward the stopy24 for cutting off the feeding of grain into the compartment 12 owingconnection between the shafts 13 and 25 which is established by thedisks 18 and 29 and the rod 30. However, the valve 2O does not close thecompartment 12'1ntil after tion or is on dead center, and even then itis placed so that a slight amount ofv grain the valve 26 reaches suchposition the spring lrllhe tangent ork cir-f` with respect vthe valve 26has assumed its vertical posi` controlling the into the compartment 12and when"k upper portion of ber,

Leterme f 35 will be under tension and immediately as the valve 26 tendsto `move slightly 0E in dead center, the spring 35 will act to quicklysnap the valve 26 upwardly into engagement with the stop 28 to form aclosure -for the compartment 13 at which time the valve 2() will bemoved to form a closure for the inlet end of the compartment 12 `and toallow the. grain wardly nthrough the compartment 13. The

to pass down.

disk 19 is provided witha recess 38, formed 4 therein and having an'opening upon the the disk, in which recess 39 is positioned. Thisspring engages against the head 40 formed upon a striking pin ll. rlhehead 40 of striking pin 41 is confined within the recess 38, by athreaded washer 4-2, while the main portion of the pin projects beyondthe periphery of the disk 19, for striking engagement with a counter 44,of any approved type the tension spring for registering each operationof the valve 20, and consequently registering the number ofpredetermined quantities of grain measured or weighed by the weigher.

rllhe tension of the spring 35 may be regulated by the adjusted movementof the block 32 to weigh any predetermined quantity of grain upon eachoperation ofthe valves,y

or cause it to weigh a various types of grain having di'erent speciicgravities,vsuch as wheat, oats, rye, etc.

l Changes in details may be made without departing from the spirit ofthis invention, but;

l claim: s

1; ln a grain weigher, the combination of body divided into a pair ofgrain receiving chambers, a valve pivoted at the upper end of thedivision of said chamber for controlling the inlet of grain into thechamber, a second valvepositioned at the lower endof the division ofsaid chamber and controlling the/ outlet of grain chamber, said valveconnected for synchronous movement and arranged whereby the inletcontrol valve will prevent the inlet of grain into the chamber otherthan that which is closed by said outlet-control valve, stops withinsaid body for limiting the lmovement of said valves, and a weighingcontractileV spring connecting said valves and 'adapted to swing thempast the dead center and into proper positions-after operation thereofunder weight of grain-l 2. lin-a' grain weigher, the combination' of abody divided into a pair of grain receiving-chambers, a valve pivted atthe upper end of the division of said chamber for controlling the inletof grain into the chama second valve positioned at the lower end of the.division of said chamber and outlet of grain from the chamber, saidvalve connected for synchronous movement and arrangeolwhereby therdesired quantity ofl from the 1 ends of the inlet control valve willprevent the inlet of grain into the chamber other than that which isclosed by said outlet control valve, stops within said body for limitingthe movement of said valves, a weighing contractile spring connectingsaid valves and adapted to swing them past their dead center and intoproper closing position after operation thereof under weight of grain,and means for tensioning said spring.

3. In a grain weigher, the combination of a body divided into a pair ofgrain receiving compartments, shafts, rockably supported by said body atthe lower and upper partition forming said chamber, valve members keyedto said shafts and eX- tending into opposite directions whereby theupper valve will form a closure for one chamber at its upper end, whilethe lower valve will form a closure for the other chamber at its lowerend, disks mounted upon said shafts eXteriorly of-said body,

means connecting said disks for connecting said valves for synchronousmovement, and a weighing contractile spring connected to said disks.

4. In a grain weigher, the combination of a body divided into a pair ofgrain receiving compartments, shafts rockably supported by said body atthe lower and upper ends of the partition forming said chamber, valve'members keyed to said shafts and eX- tending into opposite directionswhereby the upper valve will form a closure for one chamber at its upperend, while the lower Valve will form a closure for the other chamber atits lower end, disks mounted upon said shafts eXteriorly of said body,means connecting said disks for connecting said valves for synchronousmovement, a weighing contractile spring connected to said disks, andmeans for tensioning said s rin p ,g CHARLES M. LEFLER.

